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// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
/*
* Copyright (C) 2012-2014, 2018-2021 Intel Corporation
* Copyright (C) 2013-2014 Intel Mobile Communications GmbH
* Copyright (C) 2015-2017 Intel Deutschland GmbH
*/
#include <linux/devcoredump.h>
#include "iwl-drv.h"
#include "runtime.h"
#include "dbg.h"
#include "debugfs.h"
#include "iwl-io.h"
#include "iwl-prph.h"
#include "iwl-csr.h"
#include "pnvm.h"
/*
* Note: This structure is read from the device with IO accesses,
* and the reading already does the endian conversion. As it is
* read with u32-sized accesses, any members with a different size
* need to be ordered correctly though!
*/
struct iwl_error_event_table {
u32 valid; /* (nonzero) valid, (0) log is empty */
u32 error_id; /* type of error */
u32 trm_hw_status0; /* TRM HW status */
u32 trm_hw_status1; /* TRM HW status */
u32 blink2; /* branch link */
u32 ilink1; /* interrupt link */
u32 ilink2; /* interrupt link */
u32 data1; /* error-specific data */
u32 data2; /* error-specific data */
u32 data3; /* error-specific data */
u32 bcon_time; /* beacon timer */
u32 tsf_low; /* network timestamp function timer */
u32 tsf_hi; /* network timestamp function timer */
u32 gp1; /* GP1 timer register */
u32 gp2; /* GP2 timer register */
u32 fw_rev_type; /* firmware revision type */
u32 major; /* uCode version major */
u32 minor; /* uCode version minor */
u32 hw_ver; /* HW Silicon version */
u32 brd_ver; /* HW board version */
u32 log_pc; /* log program counter */
u32 frame_ptr; /* frame pointer */
u32 stack_ptr; /* stack pointer */
u32 hcmd; /* last host command header */
u32 isr0; /* isr status register LMPM_NIC_ISR0:
* rxtx_flag */
u32 isr1; /* isr status register LMPM_NIC_ISR1:
* host_flag */
u32 isr2; /* isr status register LMPM_NIC_ISR2:
* enc_flag */
u32 isr3; /* isr status register LMPM_NIC_ISR3:
* time_flag */
u32 isr4; /* isr status register LMPM_NIC_ISR4:
* wico interrupt */
u32 last_cmd_id; /* last HCMD id handled by the firmware */
u32 wait_event; /* wait event() caller address */
u32 l2p_control; /* L2pControlField */
u32 l2p_duration; /* L2pDurationField */
u32 l2p_mhvalid; /* L2pMhValidBits */
u32 l2p_addr_match; /* L2pAddrMatchStat */
u32 lmpm_pmg_sel; /* indicate which clocks are turned on
* (LMPM_PMG_SEL) */
u32 u_timestamp; /* indicate when the date and time of the
* compilation */
u32 flow_handler; /* FH read/write pointers, RX credit */
} __packed /* LOG_ERROR_TABLE_API_S_VER_3 */;
/*
* UMAC error struct - relevant starting from family 8000 chip.
* Note: This structure is read from the device with IO accesses,
* and the reading already does the endian conversion. As it is
* read with u32-sized accesses, any members with a different size
* need to be ordered correctly though!
*/
struct iwl_umac_error_event_table {
u32 valid; /* (nonzero) valid, (0) log is empty */
u32 error_id; /* type of error */
u32 blink1; /* branch link */
u32 blink2; /* branch link */
u32 ilink1; /* interrupt link */
u32 ilink2; /* interrupt link */
u32 data1; /* error-specific data */
u32 data2; /* error-specific data */
u32 data3; /* error-specific data */
u32 umac_major;
u32 umac_minor;
u32 frame_pointer; /* core register 27*/
u32 stack_pointer; /* core register 28 */
u32 cmd_header; /* latest host cmd sent to UMAC */
u32 nic_isr_pref; /* ISR status register */
} __packed;
#define ERROR_START_OFFSET (1 * sizeof(u32))
#define ERROR_ELEM_SIZE (7 * sizeof(u32))
static void iwl_fwrt_dump_umac_error_log(struct iwl_fw_runtime *fwrt)
{
struct iwl_trans *trans = fwrt->trans;
struct iwl_umac_error_event_table table = {};
u32 base = fwrt->trans->dbg.umac_error_event_table;
char pnvm_name[MAX_PNVM_NAME];
if (!base &&
!(fwrt->trans->dbg.error_event_table_tlv_status &
IWL_ERROR_EVENT_TABLE_UMAC))
return;
iwl_trans_read_mem_bytes(trans, base, &table, sizeof(table));
if (table.valid)
fwrt->dump.umac_err_id = table.error_id;
if (ERROR_START_OFFSET <= table.valid * ERROR_ELEM_SIZE) {
IWL_ERR(trans, "Start IWL Error Log Dump:\n");
IWL_ERR(trans, "Transport status: 0x%08lX, valid: %d\n",
fwrt->trans->status, table.valid);
}
if ((table.error_id & ~FW_SYSASSERT_CPU_MASK) ==
FW_SYSASSERT_PNVM_MISSING) {
iwl_pnvm_get_fs_name(trans, pnvm_name, sizeof(pnvm_name));
IWL_ERR(fwrt, "PNVM data is missing, please install %s\n",
pnvm_name);
}
IWL_ERR(fwrt, "0x%08X | %s\n", table.error_id,
iwl_fw_lookup_assert_desc(table.error_id));
IWL_ERR(fwrt, "0x%08X | umac branchlink1\n", table.blink1);
IWL_ERR(fwrt, "0x%08X | umac branchlink2\n", table.blink2);
IWL_ERR(fwrt, "0x%08X | umac interruptlink1\n", table.ilink1);
IWL_ERR(fwrt, "0x%08X | umac interruptlink2\n", table.ilink2);
IWL_ERR(fwrt, "0x%08X | umac data1\n", table.data1);
IWL_ERR(fwrt, "0x%08X | umac data2\n", table.data2);
IWL_ERR(fwrt, "0x%08X | umac data3\n", table.data3);
IWL_ERR(fwrt, "0x%08X | umac major\n", table.umac_major);
IWL_ERR(fwrt, "0x%08X | umac minor\n", table.umac_minor);
IWL_ERR(fwrt, "0x%08X | frame pointer\n", table.frame_pointer);
IWL_ERR(fwrt, "0x%08X | stack pointer\n", table.stack_pointer);
IWL_ERR(fwrt, "0x%08X | last host cmd\n", table.cmd_header);
IWL_ERR(fwrt, "0x%08X | isr status reg\n", table.nic_isr_pref);
}
static void iwl_fwrt_dump_lmac_error_log(struct iwl_fw_runtime *fwrt, u8 lmac_num)
{
struct iwl_trans *trans = fwrt->trans;
struct iwl_error_event_table table = {};
u32 val, base = fwrt->trans->dbg.lmac_error_event_table[lmac_num];
if (fwrt->cur_fw_img == IWL_UCODE_INIT) {
if (!base)
base = fwrt->fw->init_errlog_ptr;
} else {
if (!base)
base = fwrt->fw->inst_errlog_ptr;
}
if (base < 0x400000) {
IWL_ERR(fwrt,
"Not valid error log pointer 0x%08X for %s uCode\n",
base,
(fwrt->cur_fw_img == IWL_UCODE_INIT)
? "Init" : "RT");
return;
}
/* check if there is a HW error */
val = iwl_trans_read_mem32(trans, base);
if (((val & ~0xf) == 0xa5a5a5a0) || ((val & ~0xf) == 0x5a5a5a50)) {
int err;
IWL_ERR(trans, "HW error, resetting before reading\n");
/* reset the device */
err = iwl_trans_sw_reset(trans, true);
if (err)
return;
err = iwl_finish_nic_init(trans);
if (err)
return;
}
iwl_trans_read_mem_bytes(trans, base, &table, sizeof(table));
if (table.valid)
fwrt->dump.lmac_err_id[lmac_num] = table.error_id;
if (ERROR_START_OFFSET <= table.valid * ERROR_ELEM_SIZE) {
IWL_ERR(trans, "Start IWL Error Log Dump:\n");
IWL_ERR(trans, "Transport status: 0x%08lX, valid: %d\n",
fwrt->trans->status, table.valid);
}
/* Do not change this output - scripts rely on it */
IWL_ERR(fwrt, "Loaded firmware version: %s\n", fwrt->fw->fw_version);
IWL_ERR(fwrt, "0x%08X | %-28s\n", table.error_id,
iwl_fw_lookup_assert_desc(table.error_id));
IWL_ERR(fwrt, "0x%08X | trm_hw_status0\n", table.trm_hw_status0);
IWL_ERR(fwrt, "0x%08X | trm_hw_status1\n", table.trm_hw_status1);
IWL_ERR(fwrt, "0x%08X | branchlink2\n", table.blink2);
IWL_ERR(fwrt, "0x%08X | interruptlink1\n", table.ilink1);
IWL_ERR(fwrt, "0x%08X | interruptlink2\n", table.ilink2);
IWL_ERR(fwrt, "0x%08X | data1\n", table.data1);
IWL_ERR(fwrt, "0x%08X | data2\n", table.data2);
IWL_ERR(fwrt, "0x%08X | data3\n", table.data3);
IWL_ERR(fwrt, "0x%08X | beacon time\n", table.bcon_time);
IWL_ERR(fwrt, "0x%08X | tsf low\n", table.tsf_low);
IWL_ERR(fwrt, "0x%08X | tsf hi\n", table.tsf_hi);
IWL_ERR(fwrt, "0x%08X | time gp1\n", table.gp1);
IWL_ERR(fwrt, "0x%08X | time gp2\n", table.gp2);
IWL_ERR(fwrt, "0x%08X | uCode revision type\n", table.fw_rev_type);
IWL_ERR(fwrt, "0x%08X | uCode version major\n", table.major);
IWL_ERR(fwrt, "0x%08X | uCode version minor\n", table.minor);
IWL_ERR(fwrt, "0x%08X | hw version\n", table.hw_ver);
IWL_ERR(fwrt, "0x%08X | board version\n", table.brd_ver);
IWL_ERR(fwrt, "0x%08X | hcmd\n", table.hcmd);
IWL_ERR(fwrt, "0x%08X | isr0\n", table.isr0);
IWL_ERR(fwrt, "0x%08X | isr1\n", table.isr1);
IWL_ERR(fwrt, "0x%08X | isr2\n", table.isr2);
IWL_ERR(fwrt, "0x%08X | isr3\n", table.isr3);
IWL_ERR(fwrt, "0x%08X | isr4\n", table.isr4);
IWL_ERR(fwrt, "0x%08X | last cmd Id\n", table.last_cmd_id);
IWL_ERR(fwrt, "0x%08X | wait_event\n", table.wait_event);
IWL_ERR(fwrt, "0x%08X | l2p_control\n", table.l2p_control);
IWL_ERR(fwrt, "0x%08X | l2p_duration\n", table.l2p_duration);
IWL_ERR(fwrt, "0x%08X | l2p_mhvalid\n", table.l2p_mhvalid);
IWL_ERR(fwrt, "0x%08X | l2p_addr_match\n", table.l2p_addr_match);
IWL_ERR(fwrt, "0x%08X | lmpm_pmg_sel\n", table.lmpm_pmg_sel);
IWL_ERR(fwrt, "0x%08X | timestamp\n", table.u_timestamp);
IWL_ERR(fwrt, "0x%08X | flow_handler\n", table.flow_handler);
}
/*
* TCM error struct.
* Note: This structure is read from the device with IO accesses,
* and the reading already does the endian conversion. As it is
* read with u32-sized accesses, any members with a different size
* need to be ordered correctly though!
*/
struct iwl_tcm_error_event_table {
u32 valid;
u32 error_id;
u32 blink2;
u32 ilink1;
u32 ilink2;
u32 data1, data2, data3;
u32 logpc;
u32 frame_pointer;
u32 stack_pointer;
u32 msgid;
u32 isr;
u32 hw_status[5];
u32 sw_status[1];
u32 reserved[4];
} __packed; /* TCM_LOG_ERROR_TABLE_API_S_VER_1 */
static void iwl_fwrt_dump_tcm_error_log(struct iwl_fw_runtime *fwrt, int idx)
{
struct iwl_trans *trans = fwrt->trans;
struct iwl_tcm_error_event_table table = {};
u32 base = fwrt->trans->dbg.tcm_error_event_table[idx];
int i;
u32 flag = idx ? IWL_ERROR_EVENT_TABLE_TCM2 :
IWL_ERROR_EVENT_TABLE_TCM1;
if (!base || !(fwrt->trans->dbg.error_event_table_tlv_status & flag))
return;
iwl_trans_read_mem_bytes(trans, base, &table, sizeof(table));
IWL_ERR(fwrt, "TCM%d status:\n", idx + 1);
IWL_ERR(fwrt, "0x%08X | error ID\n", table.error_id);
IWL_ERR(fwrt, "0x%08X | tcm branchlink2\n", table.blink2);
IWL_ERR(fwrt, "0x%08X | tcm interruptlink1\n", table.ilink1);
IWL_ERR(fwrt, "0x%08X | tcm interruptlink2\n", table.ilink2);
IWL_ERR(fwrt, "0x%08X | tcm data1\n", table.data1);
IWL_ERR(fwrt, "0x%08X | tcm data2\n", table.data2);
IWL_ERR(fwrt, "0x%08X | tcm data3\n", table.data3);
IWL_ERR(fwrt, "0x%08X | tcm log PC\n", table.logpc);
IWL_ERR(fwrt, "0x%08X | tcm frame pointer\n", table.frame_pointer);
IWL_ERR(fwrt, "0x%08X | tcm stack pointer\n", table.stack_pointer);
IWL_ERR(fwrt, "0x%08X | tcm msg ID\n", table.msgid);
IWL_ERR(fwrt, "0x%08X | tcm ISR status\n", table.isr);
for (i = 0; i < ARRAY_SIZE(table.hw_status); i++)
IWL_ERR(fwrt, "0x%08X | tcm HW status[%d]\n",
table.hw_status[i], i);
for (i = 0; i < ARRAY_SIZE(table.sw_status); i++)
IWL_ERR(fwrt, "0x%08X | tcm SW status[%d]\n",
table.sw_status[i], i);
}
/*
* RCM error struct.
* Note: This structure is read from the device with IO accesses,
* and the reading already does the endian conversion. As it is
* read with u32-sized accesses, any members with a different size
* need to be ordered correctly though!
*/
struct iwl_rcm_error_event_table {
u32 valid;
u32 error_id;
u32 blink2;
u32 ilink1;
u32 ilink2;
u32 data1, data2, data3;
u32 logpc;
u32 frame_pointer;
u32 stack_pointer;
u32 msgid;
u32 isr;
u32 frame_hw_status;
u32 mbx_lmac_to_rcm_req;
u32 mbx_rcm_to_lmac_req;
u32 mh_ctl;
u32 mh_addr1_lo;
u32 mh_info;
u32 mh_err;
u32 reserved[3];
} __packed; /* RCM_LOG_ERROR_TABLE_API_S_VER_1 */
static void iwl_fwrt_dump_rcm_error_log(struct iwl_fw_runtime *fwrt, int idx)
{
struct iwl_trans *trans = fwrt->trans;
struct iwl_rcm_error_event_table table = {};
u32 base = fwrt->trans->dbg.rcm_error_event_table[idx];
u32 flag = idx ? IWL_ERROR_EVENT_TABLE_RCM2 :
IWL_ERROR_EVENT_TABLE_RCM1;
if (!base || !(fwrt->trans->dbg.error_event_table_tlv_status & flag))
return;
iwl_trans_read_mem_bytes(trans, base, &table, sizeof(table));
IWL_ERR(fwrt, "RCM%d status:\n", idx + 1);
IWL_ERR(fwrt, "0x%08X | error ID\n", table.error_id);
IWL_ERR(fwrt, "0x%08X | rcm branchlink2\n", table.blink2);
IWL_ERR(fwrt, "0x%08X | rcm interruptlink1\n", table.ilink1);
IWL_ERR(fwrt, "0x%08X | rcm interruptlink2\n", table.ilink2);
IWL_ERR(fwrt, "0x%08X | rcm data1\n", table.data1);
IWL_ERR(fwrt, "0x%08X | rcm data2\n", table.data2);
IWL_ERR(fwrt, "0x%08X | rcm data3\n", table.data3);
IWL_ERR(fwrt, "0x%08X | rcm log PC\n", table.logpc);
IWL_ERR(fwrt, "0x%08X | rcm frame pointer\n", table.frame_pointer);
IWL_ERR(fwrt, "0x%08X | rcm stack pointer\n", table.stack_pointer);
IWL_ERR(fwrt, "0x%08X | rcm msg ID\n", table.msgid);
IWL_ERR(fwrt, "0x%08X | rcm ISR status\n", table.isr);
IWL_ERR(fwrt, "0x%08X | frame HW status\n", table.frame_hw_status);
IWL_ERR(fwrt, "0x%08X | LMAC-to-RCM request mbox\n",
table.mbx_lmac_to_rcm_req);
IWL_ERR(fwrt, "0x%08X | RCM-to-LMAC request mbox\n",
table.mbx_rcm_to_lmac_req);
IWL_ERR(fwrt, "0x%08X | MAC header control\n", table.mh_ctl);
IWL_ERR(fwrt, "0x%08X | MAC header addr1 low\n", table.mh_addr1_lo);
IWL_ERR(fwrt, "0x%08X | MAC header info\n", table.mh_info);
IWL_ERR(fwrt, "0x%08X | MAC header error\n", table.mh_err);
}
static void iwl_fwrt_dump_iml_error_log(struct iwl_fw_runtime *fwrt)
{
struct iwl_trans *trans = fwrt->trans;
u32 error, data1;
if (fwrt->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_22000) {
error = UMAG_SB_CPU_2_STATUS;
data1 = UMAG_SB_CPU_1_STATUS;
} else if (fwrt->trans->trans_cfg->device_family >=
IWL_DEVICE_FAMILY_8000) {
error = SB_CPU_2_STATUS;
data1 = SB_CPU_1_STATUS;
} else {
return;
}
error = iwl_read_umac_prph(trans, UMAG_SB_CPU_2_STATUS);
IWL_ERR(trans, "IML/ROM dump:\n");
if (error & 0xFFFF0000)
IWL_ERR(trans, "0x%04X | IML/ROM SYSASSERT\n", error >> 16);
IWL_ERR(fwrt, "0x%08X | IML/ROM error/state\n", error);
IWL_ERR(fwrt, "0x%08X | IML/ROM data1\n",
iwl_read_umac_prph(trans, data1));
if (fwrt->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_22000)
IWL_ERR(fwrt, "0x%08X | IML/ROM WFPM_AUTH_KEY_0\n",
iwl_read_umac_prph(trans, SB_MODIFY_CFG_FLAG));
}
#define FSEQ_REG(x) { .addr = (x), .str = #x, }
static void iwl_fwrt_dump_fseq_regs(struct iwl_fw_runtime *fwrt)
{
struct iwl_trans *trans = fwrt->trans;
int i;
struct {
u32 addr;
const char *str;
} fseq_regs[] = {
FSEQ_REG(FSEQ_ERROR_CODE),
FSEQ_REG(FSEQ_TOP_INIT_VERSION),
FSEQ_REG(FSEQ_CNVIO_INIT_VERSION),
FSEQ_REG(FSEQ_OTP_VERSION),
FSEQ_REG(FSEQ_TOP_CONTENT_VERSION),
FSEQ_REG(FSEQ_ALIVE_TOKEN),
FSEQ_REG(FSEQ_CNVI_ID),
FSEQ_REG(FSEQ_CNVR_ID),
FSEQ_REG(CNVI_AUX_MISC_CHIP),
FSEQ_REG(CNVR_AUX_MISC_CHIP),
FSEQ_REG(CNVR_SCU_SD_REGS_SD_REG_DIG_DCDC_VTRIM),
FSEQ_REG(CNVR_SCU_SD_REGS_SD_REG_ACTIVE_VDIG_MIRROR),
};
if (!iwl_trans_grab_nic_access(trans))
return;
IWL_ERR(fwrt, "Fseq Registers:\n");
for (i = 0; i < ARRAY_SIZE(fseq_regs); i++)
IWL_ERR(fwrt, "0x%08X | %s\n",
iwl_read_prph_no_grab(trans, fseq_regs[i].addr),
fseq_regs[i].str);
iwl_trans_release_nic_access(trans);
}
void iwl_fwrt_dump_error_logs(struct iwl_fw_runtime *fwrt)
{
if (!test_bit(STATUS_DEVICE_ENABLED, &fwrt->trans->status)) {
IWL_ERR(fwrt,
"DEVICE_ENABLED bit is not set. Aborting dump.\n");
return;
}
iwl_fwrt_dump_lmac_error_log(fwrt, 0);
if (fwrt->trans->dbg.lmac_error_event_table[1])
iwl_fwrt_dump_lmac_error_log(fwrt, 1);
iwl_fwrt_dump_umac_error_log(fwrt);
iwl_fwrt_dump_tcm_error_log(fwrt, 0);
iwl_fwrt_dump_rcm_error_log(fwrt, 0);
iwl_fwrt_dump_tcm_error_log(fwrt, 1);
iwl_fwrt_dump_rcm_error_log(fwrt, 1);
iwl_fwrt_dump_iml_error_log(fwrt);
iwl_fwrt_dump_fseq_regs(fwrt);
if (fwrt->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_BZ) {
u32 scratch = iwl_read32(fwrt->trans, CSR_FUNC_SCRATCH);
IWL_ERR(fwrt, "Function Scratch status:\n");
IWL_ERR(fwrt, "0x%08X | Func Scratch\n", scratch);
}
}
IWL_EXPORT_SYMBOL(iwl_fwrt_dump_error_logs);
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